Double-acting door hinge



Jan. 3, 1928.

- 1,655,043 D. w. BLACKWELL DOUBLE ACTING DOOR HINGE Filed May v, 1925 I21 5 Wil 71 I 5 Eel. 11- a 16* 15 1 E6. 2.

16 f; 14 10 j 5 F 5- \J I E65. 5- l gwumrloz DAN/EL W 5L/7CKWELL.

Patented Jan. 3, 1928.

DANIEL W. BLAGKWELL, OF SAN DIEGG, CALIFORNIA.

DOUBLE-ACTING DOOR HINGE.

Application filed May 7,

My invention relates to double-acting door hinges, and the objects of myinvention are: first, to provide a hinge mechanism of this class whichwill automatically return the door to a closed position when the samehas been opened and which will immediately bring the door to rest whenclosed and not permit the same to swing back and forth neodlessl'second, to pro ide a hinge mechanism of this class which will hold thedoor in an open position when the same is rotated about its axis morethan quarter of a turn or beyond a right angle to its normally closedposition; third, to provide a hinge mechanism of this class in which thedoor will not be raised or lowered when the is swung on its axis, butheld in place both at the top and bottom of the door; fourth, toprovides hinge mechanism of this class in which a simple compressionspring is used to provide the actuating force and in which thecompression is substantially the same when the door is in a closed orwide open position, thus reducing the strainon the spring to a minimum;fifth, to provide a hinge mechanism of this class by reason of which thedoor may be opened with little effort and by which the door will startto close slowly and gradually, thereby permitting a person passingthrough the passage to clear the door before the same gains muchmomentum; sixth, to provide hinge mechanism of this class which may beeasily adjusted and which is applicable for doors of differentthicknesses; seventh, to provide a novclly constructed hinge mechanismof this class, and eighth, to provide a hinge mechanism of this classwhich is very simple and economical of construction proportionate to itsfunctions, durable, practical, and which will not readily deteriorate orget out of order.

lVith these and other objects in View will appear hereinafter, myinvention consists of certain novel features of construction,combination and arran 'ement of parts and portions as will behereinafter described in detail and particularly set forth in theappended claims, reference being had to the accompanying drawings and tothe characters of reference thereon which form a part of thisapplication, in which: I

Figure 1 is a sectional elevational view of my hinge mechanism at thebottom and top ends of a double acting door, showing the samefragmentarily, with the section 1923. Serial No. 637,118.

l w, 1 i taxen tlnough 11 01 Fig. 2, and showel ration to facilitate theillustration, and Fig. 3 is a transverse sectional view take through 33of Fig. 1.

Like characters of reference refer to similar parts and. portionsthroughout the several views of the drawings.

The hinge casing member 1, screws 2, retaining member 8, guide memberaxle member 5, screw 6, spring adjusting member '7, spring 8, rollers 9,washers 10, base plate 11, cam member 12, rivets 13, plate 14, screw 15,inclosure plates 16, screws 17 and 18, female hinge member 19, screws20, male hinge member 21, and the screws 22, constitute the principalparts and portions of my double acting door hinge mec ianisni.

The casing member 1 of tubular construction is positioned in a recess Aat the lower end of-the door A and is secured in said position by meansof the screws 2 extending through laterally extending lugs 1, the 301'tions forming said lugs being cut and ent outwardly from said casingmember, forming longitudinal slots 1 in the sides and at the lower endof the casing member. Said casing member is further held in position bysharp pointed teeth 1 at the inner end of said member 1, which aredriven into the wood at the bottom of the recess A. At the lower end ofthe tubular casing member 1 is provided an annular retaining member 3,preferably welded thereto, and adapted to retain the axle member 5 andspring 8 in position within said casing member 1. Said axle member isprovided with a central enlarged portion 5 which is reciprocally mountedwithin the tubular casing member 1 and is provided with outwardlyextending portions 5*. which extend through the slots 1 of the casingmember 1, on the ext-ended ends of which are revolubly mountedthctorusshaped rollers 9, which are secured to said axle by means of theaxle being riveted over at its end and washers 10 being int-erposedbetween the riveted portions and the rollers 9, there being also washers10 interposed between said rollers and the square shoulder of said axle.A guide member 4 is positioned within said casing member and secured atits lower end to the enlarged por- Iii tion of the axle 5 by means ofthe screw 6, the head of which also serves as a guide Withinthe screwmember 15. At the upper end of the casing member 1 is provided aninternally threaded portion 1 to receive the spring adjusting nut 7,which nut also serves as a guide for the upper end of the guide member4, which extends above the same and extends into a reduced recess A ofthe door A. 1 Between the enlarged portion of the axle member and thespring adjusting nut 7 and around the guide member is positionedthecompression spring 8 for retaining the rollers 9 in engagement with thecam member 12. Said cam member consists of a ring-like member'12-,having opposed high ridge portions 12 with the upper face of thering-like member 12 gradually receding therefrom in curved form and withgradually increasing inclination, and terminatin in abruptlydownwardlycurved, offset portions 12 said curved portions 12 being of lessdiameter than the diameter of the rollers 9, so that 7 when the rollersare positioned at said portions, as shown in Figs. 1 and 2 of thedrawings, as when the door 1s m a closed position,

said rollers will bear against the ridges on either side of the centerlines formed by the intersection of the gradually curved portions andthe abruptly curved'portions- 12,thus holding said door in a closedposition by means of the spring 8 and preventing swinging of the door.Said cam member 12 is provided at the opposed ridge portions 12 withdownwardly extending lugs 12, which extend through the base plate 11 andare riveted thereto, said cam member being also secured to said plate 11by means of the rivets 13 extending through the abruptly curved portions12 of the cam member 12. Said cam member is further provided with anannular plate 14, which is supported by the ridge portion thereof andthrough which extends the screw 15, secured'to the retaining member 3 ofthe casing member 1. which screw assembles the casing members with thecam member' The outer inclosure for the hinge mechanism consists of theplates 16, which extend around the lower, rear portion of the door andare secured thereto by means of the screws 17. Said platesare providedwith downwardly extending, semicircular portions 16 which extend overand around the cam portion of the mechanism, concealing the same. Itwill be notedthat the door, shown in Figs. 2 and 3 of the drawings, isof considerable thickness and that the inclosure plates 16, as shown inthe drawings, can be used for a thinner door, as shown by dotted linesin Fig. 2 of the drawings, by cutting off the inner. edges of theplates.

In the upper end of the door I have provided'a female hinge member 19,which is secured thereto by the screws 20 andvinto which extends themale hinge member 21, se-

cured to the door casing B by means of the screws 22, clearance beingprovided between sald members for grease.-

Though Ihave shown and described a particular construction, combinationand arrangement of parts and portions, 1 do not wish to be limited tothisfiparticular construction, combination and arrangement, but desireto include in the scope of my invention, the construction, combinationand arrangement substantially as set forth in the appended claims.

It is obvious from this construction that there. is provided a hingemechanism which will automatically and gradually return the door to aclosed position when the same has been opened and which will bring thedoor to rest when the same is being closed and not permit the same toswing back and forth; that there is provided a hinge mechanism of thisclass which will hold the door in an open position when thesame isrotated aboutits axis beyond a right angle to its normally closedposition; that there is provided a hinge mechanism of this class inwhich the doorwill not be raised or lowered when the same is swung onits axis but will be fixedly held in place both at the top and bottomthereof; that there isv provided'a hinge mechanism of this class inwhich a simple compression spring is used to provide the actuating forceand in which the compression is substantially the same when the door isin a closed or in a wide open position, thus reducing to a minimum thestrain on the spring; that there is provided a hinge mechanism of thisclass, by reason of which the door may be easily opened with littleeffort without a great deal of friction, jerks or squeaks and by whichthe door will start to close slowly by reason of the construction of thecam member, thereby permitting a person passingthrough the passage toclear the door before the same gains much momentum; that there isprovided a hinge mechanism of this class which may be easily adjustedand which is applicable for doors of different thicknesses, and thatthere is provided a novelly constructed hinge mechanism of this classand a mechanism which is very simple and economical of con-.

a pair of oppositely disposed rollers revolubl; mounted at the extendedends of said axle member and Wholly outside of the said tubular casing,and a cam member secured to the floor contiguous to said door, said cammember consisting 01 an annular member provided Withopposed high ridgesWith the face of said annular member recoding from said ridged portionsin gradual curve and inclination.

2. A hinge mechanism, including a 'hol low tubular casing member adaptedto be secured in a vertical position at the lower end of a door an axlemember extending through slots in the lower portion of said casingmember and reciprocally mounted therein, a second tubular memberconcentrically positioned and spaced apart from said first mentionedtubular casing member,

a spring loosely positioned between said first and second mentionedtubular members, the one end of said spring engaging said axle member,means at the other end of said spring for adjusting the tension of saidspring, a pair of oppositely disposed rollers revoluhly mounted at theextended end of said axle member Wholly Without said tubular casing. anda cam member secured to the floor contiguous to said door, said cammember consisting of an annular member provided with oppositely highridges with the face of aid annular member receding trom said ridgeportion in gradual curve and inclination.

In testimony whereof, I have hereunto set my hand at San Diego,California, this 28th day of April, 1923.

DANIEL BLACKXVELL.

